It’s never good when a football stadium looks more like a warzone. On Saturday, the Marele Derby (Great Derby) between Steaua Bucharest and Dinamo Bucharest in Romania descended into chaos as the game was interrupted three times when fans of both teams fired flares at each other, and lobbed smoke bombs onto the pitch.

The video below shows the acrid atmospher, in what’s always a tense game, especially given the two clubs have won 23 of the past 26 Romanian titles between them. Dinamo fans once set a section of Steaua’s stadium (Stadionul Ghencea) on fire.